Z00.12 Encounter for routine child health examination

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Encounter for routine child health examination is Z00.12 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
Z00-Z13: Persons encountering health services for examinations (Z00-Z13)
Category Z00
19 codes (13 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with Z00.12.
  • health check for child under 29 days old (Z00.11-)
  • health supervision of foundling or other healthy infant or child (Z76.1-Z76.2)
  • newborn health examination (Z00.11-)

Inclusion Terms

  • Health check (routine) for child over 28 days old
  • Immunizations appropriate for age
  • Routine developmental screening of infant or child
  • Routine vision and hearing testing

Official Coding Guidelines

General medical exams w/ abnormal findings—Z00.0-/Z00.12-

P. Encounters for general medical examinations with abnormal findings The subcategories for encounters for general medical examinations, Z00.0- and encounter for routine child health examination, Z00.12-, provide codes for with and without abnormal findings. Should a general medical examination result in an abnormal finding, the code for general medical examination with abnormal finding should be assigned as the first-listed diagnosis. An examination with abnormal findings refers to a condition/diagnosis that is newly identified or a change in severity of a chronic condition (such as uncontrolled hypertension, or an acute exacerbation of chronic obstructive pulmonary disease) during a routine physical examination. A secondary code for the abnormal finding should also be coded.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section IV.P
Used with any code in range A00.0-T88.9, Z00-Z99

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.20.a.1

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

Z00 Encounter for general examination without complaint, suspected or reported diagnosis

More Specific Codes

Z00.121 Encounter for routine child health examination with abnormal findings Z00.129 Encounter for routine child health examination without abnormal findings

Related Codes in Z00

Z00 Encounter for general examination without complaint, suspected or reported diagnosis Z00.0 Encounter for general adult medical examination Z00.00 Encounter for general adult medical examination without abnormal findings Z00.01 Encounter for general adult medical examination with abnormal findings Z00.1 Encounter for newborn, infant and child health examinations Z00.11 Newborn health examination Z00.110 Health examination for newborn under 8 days old Z00.111 Health examination for newborn 8 to 28 days old Z00.121 Encounter for routine child health examination with abnormal findings Z00.129 Encounter for routine child health examination without abnormal findings Z00.2 Encounter for examination for period of rapid growth in childhood Z00.3 Encounter for examination for adolescent development state Z00.5 Encounter for examination of potential donor of organ and tissue Z00.6 Encounter for examination for normal comparison and control in clinical research program Z00.7 Encounter for examination for period of delayed growth in childhood Z00.70 Encounter for examination for period of delayed growth in childhood without abnormal findings Z00.71 Encounter for examination for period of delayed growth in childhood with abnormal findings Z00.8 Encounter for other general examination
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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